baber/WOPTO huggingface dataset:
Patent GB-968999-A (GB)
Title: Improvements in or relating to lever arch files
IPC: B42F13/00
Filed: 1960-10-06
Abstract: 968,999. Lever arch files. A. SOENNECKEN. Oct. 6, 1960 [Nov. 28, 1959], No. 34347/60. Heading B6E. A lever arch file of the type comprising a sheet retaining appliance including a base-plate having two stationary filing posts spaced apart and extending substantially perpendicularly therefrom and two movable curved stirrups 11, whose lower ends are interconnected by a yoke member or crank movable by means of a lever against spring means, is provided with resilient retaining members 5 of laminated polyamide or polythene located around shaped apertures 6 in the top cover 3. The tongues 7 of the members 5 are spaced at a distance less than the thickness of the stirrups 11 so that when the file is closed the tongues 7 spring back and support the inner sides 9 of the stirrups. In the embodiment of Fig. 5 (not shown), a member 5 is additionally located on the outer side of the cover. In the embodiment of Fig. 6, the resilient members 5 are replaced by members 14 which are sprung into slots 15 in the top cover and have protuberances 17 with lips 19 which engage the inner sides 9 of the stirrups 11. The penetration of the stirrups is limited by walls 18 on the members 14.
Patent GB-1072924-A (GB)
Title: Improvements in or relating to metal sheet and the manufacture thereof
Inventor: THOMAS DEREK REGINALD
IPC: B62D33/00
Filed: 1963-08-30
Abstract: 1,072,924. Making metal sheet. BRITISH ALUMINIUM CO. Ltd. Aug. 25, 1964 [Aug. 30, 1963], No. 34421/63. Headings B3A and B3M. Metal sheet is produced by extrusion, whereby a number of rows of parallel ribs and possibly mounting flanges 3 are formed. The extruded sheet is passed between a roll 5, which may be of laminated wood and freely rotatable, and a driven roll 6 of hardened tool steel. The teeth (9) of the roll 6 (Fig. 5, not shown) form grooves in the ribs at an angle to the length thereof.
Patent GB-487324-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B15/10
Filed: 1936-12-16
Abstract: 487,324. Refrigerating. ELECTROLUX, Ltd. Dec. 16, 1936, No. 34568. Convention date, Jan. 8. [Class 29] Absorption systems.-In a continuous-cycle inert gas system a store of liquefied refrigerant is accumulated during normal working which is available for ice-making or quick freezing by evaporation into the inert gas and reabsorption into the solution, the store preferably being formed as pools of liquid retained by baffles in the end of the low temperature evaporator next the usual gas heat exchanger. The concentration of the solution charged into the apparatus may be increased from the usual 32 per cent to 39 per cent to allow the system to work with normal concentration when the store has accumulated out of circulation. In the system shown in Fig. 1, with the usual generator 10, coil absorber 12, liquor heat exchanger 11, main and auxiliary air-cooled condensers 15, 16, and an equalizing vessel 30, as described in Specification 476,294, the store is formed in a chamber 40 of the low temperature evaporator 18. The upper part of this evaporator is fitted with baffles 20 forming shallow pools of refrigerant, while the chamber 40 is provided with deeper apertured baffles, with an overflow pipe 43 to the rich gas conduit 41 leading to the gas heat exchanger 26. Any solution present in the evaporator as the result of tilting of the apparatus in transit is forced out of the chamber 40 by the accumulating refrigerant and passes down into a reservoir 13 for solution. The chamber 40 may be cylindrical, in which case the refrigerant surface diminishes during evaporation, or pan-shaped, or prismatic. Where the low temperature evaporator comprises coils 18 enclosing freezing compartments, as shown in Fig. 6, the lowest stretches of the coils may be larger to provide storage chambers 40a-40b. The shelves for the ice trays are formed as double copper plates 50 secured as described in Specification 476,294. The inert gas may be admitted first to the refrigerant store and then to the other part of the low temperature evaporator, either in parallel or in contra flow.
Patent GB-920270-A (GB)
Title: Improvements in or relating to the production of steroid derivatives
Inventor: HENBEST HAROLD BERNARD
IPC: C07J75/00
Filed: 1959-10-13
Abstract: 21-Acyloxy-20-keto steroids are prepared by 21-acyloxylation of the 21-unsubstituted keto steroid using a lead tetraacylate in the presence of boron trifluoride and in a solvent medium comprising a mixture of a hydrocarbon solvent and an alcohol.  Preferably the reaction is effected at room temperature with lead tetraacetate and boron trifluoride etherate in a benzene-methanol mixture.  The process is suitable for the acyloxylation of pregnane-20-ones of the 5a - and 5b -series containing, if desired, a keto, acyloxy or hydroxy group at C3, a keto group at C11, a keto group at C12 and/or a methyl group at C16, and which may be unsaturated at one or more of the following positions 1(2), 4(5), 5(6), 9(11) and 16(17).  The invention is illustrated by 8 detailed examples.
Patent GB-282762-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D1/143
Filed: 1927-12-23
Abstract: 282,762. Maatschappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen. Dec. 23, 1926, [Convention date]. Cutting slices in succession. -In a slicing-machine having independent driving mechanisms operated respectively by an electric or other motor and by hand, a free-wheel coupling is interposed in the motordriving mechanism so that, when the machine is manually operated, the motor shaft is not rotated. As shown in Fig. 2, a motor 7 is mounted on the knife-supporting bracket 4 and a pulley 9 is coupled by a belt 10 with a pulley on the knife. The carriage is operated in the usual manner by a crank and connecting-rod, and the carriagedriving mechanism and the usual hand-wheel are connected to the knife through the usual chain and sprockets. The free-wheel is in the form of a ball or roller clutch within the pulley 9, a starshaped member 19 being keyed to the motor shaft 8, the pulley 9 encircling it. The balls or rollers 20 become wedged in the tapered recesses 21 when the motor shaft is revolving anti-clockwise, but, when the manual drive is used, the pulley 9 revolves in the same direction, releasing the balls and leaving the motor stationary. An automatic cut-out mechanism of known construction may be incorporated in the hand-driving mechanism, so that the hand-wheel will not rotate when the motor is used.
Patent GB-1071004-A (GB)
Title: Dyeable polypropylene fibers
IPC: C08K5/098
Filed: 1964-08-25
Abstract: In Example 1 stearoyloxy - diisopropoxy aluminium (C17H35COO.Al(OC3H7)2) is prepared by heating stearic acid and aluminium triisopropoxide. In Examples 3 and 5 (mono- and di-)stearoyloxy-(di- and mono-)ethoxy aluminiums are prepared by heating stearic acid and aluminium triethylate.ALSO:A dyeable polypropylene composition comprises polypropylene and 0.1 to 10% of (R1COO)mAZ(OR2)n wherein R1 is a C7 to C29 aliphatic radical, R2 is a C1 to C28 aliphatic radical, m is 1 or 2 and m + n = 3.  Preferred Al compounds are (C17H35.COO)2AlOMe, (C17H35.COO)2AlOEt, (C17H35.COO)2AlOBu, (C11H23.COO)2AlOPr, (C8H17.COO)2AlOPr, C17H35COO.Al(OPr)2, C11H23COO.Al(OPr)2, C17H35COO.Al(OMe)2, C17H35COOAl(OEt)2, C11H23COO.Al(OEt)2 and C11H23COO.Al(OC11H23)2.
Patent GB-321844-A (GB)
Title: Improvements in and relating to apparatus for giving change in cash transactions
IPC: G07D1/00
Filed: 1928-11-27
Abstract: 321,844. Bentham, J. Nov. 27, 1928. Money - delivering apparatus comprises a stationary plunger 2 supporting a pile 3 of coins enclosed by a movable member 1a having one or more projections 1b resting on the top coin and allowing the removal of that coin by the finger. Inwardly extending projections 1 f support the coins before the member 1a is placed on the plunger, and engage grooves 2c in the latter to prevent rotation.
Patent GB-322333-A (GB)
Title: Improvements in manually guided chain cutters
IPC: B27F5/06
Filed: 1928-11-27
Abstract: 322,333. Schmaltz, G. Nov. 27, 1928. Mortising.-In a handoperated electricallydriven wood - working machine of the type using a chain cutter, the electric motor and whole cutting mechanism are contained in a housing a which is resilientlv attached, by means of springs, to two guide columns b which are connected at their base by a supporting foot c. An extension c<1> of the foot c is fitted to a bearing d<1> of a bracket d which rests against the side of the work. The distance of the cutter from the edge of the work may be set by sliding the extension c<1> in its bearing and locking by the set screw d<11>. The extension c may be circular or prismatic. The machine is held by the handles h.
Patent GB-499430-A (GB)
Title: Method for the production of cola chocolate
IPC: A23G1/00
Filed: 1937-12-16
Abstract: Chocolate goods having cola nut constituents added to the chocolate have in addition a coffee constituent which effects an increased solubility of the caffeine from the cola nut constituent.  The coffee and cola nut constituents may be in powder form or as extracts, an aqueous extract of the cola nut, and in particular the cola nut constituent may comprise both powder and an extract of dried cola nut.
Patent GB-323877-A (GB)
Title: An improvement in or relating to rolling or lap boards for fabrics and the like
IPC: B65H75/06
Filed: 1929-09-30
Abstract: 323,877. Quarmby, J., and Robinson, H. Sept. 30, 1929. Piece boards.-A lap board consists of two or more thicknesses of corrugated paper a each mounted on a flat paper backing or provided with a paper cover on each side, an outer cover b of stout paper &c., and end-filling pieces c having their ends rounded off to correspond with the curvature given to the longitudinal edges of the board by the wrapping on of the cover b.
Patent GB-1334306-A (GB)
Title: Monolithic semiconductor structure
IPC: G11C5/00
Filed: 1971-07-27
Abstract: 1334306 Transistor switching circuits INTERNATIONAL BUSINESS MACHINES CORP 27 July 1971 [22 Sept 1970] 35063/71 Heading H3T [Also in Division H1] Standby and operating (higher) voltages are applied to each circuit 10, Fig. 1, of an integrated plurality (not shown) through an associated resistor 12 formed in a common epitaxial region EPI (30, Fig. 5, not shown); and to speed up charging of the capacitance C I  of the epitaxialto-isolating region junction D I  when the operating voltage V P  is applied, an intermediate bias voltage + V is applied to the epitaxial layer through a junction D B  to hold C I  partly charged. When the operating voltage V B  reaches its high level, D B  becomes reverse biased to isolate + V. The circuits 10 may be driving or support circuitry for an integrated circuit memory array, with which they are integrated (not shown), Diode D R  is the resistor-to-epitaxial junction. and D P  is formed as a P-diffusion (32) in the epitaxial layer, or it may be a Schottky diode. In the integrated circuit (Fig. 5, not shown) the resistors (16R-R, 18R-R) are connected by aluminium metallization to respective transistors (T1, T2, Figs. 3, 4, not shown), and are formed as P-diffusions in the epitaxial layer (30). An underlying highly-N region (not shown) is allowed to outdiffuse into the layer (30) to improve conductivity of the resistors.
Patent GB-815662-A (GB)
Title: Improvements in or relating to film base materials
Inventor: LEE EDWARD WILLIAM
IPC: G03C1/89
Filed: 1956-11-16
Abstract: 815,662. Coated films. ILFORD Ltd. Sept. 27, 1957 [Nov. 16, 1956; April 15, 1957], Nos. 35129/56 and 12221/57. Class 140. [Also in Group XX] A coating layer of an alkali metal or ammonium salt of a sulphonated polystyrene or sulphonated polymethyl styrene including, or overlying a layer of, polyvinyl pyrrolidone or an alkali metal or ammonium salt of a polymethyl acrylate containing free carboxyl groups is provided on film base to improve the antistatic properties thereof. The polystyrene derivatives may be coated from mainly aqueous solutions but when including the other polymers the solvents used are mainly organic liquids. Surface-active agents may be present to facilitate coating and improve resistance to moisturecondensation on the layers when coated. Preferably a small proportion of the sulphonic residues of the polystyrene derivatives are converted to sulphonamides such as stearyl sulphonamide residues and the manner of such conversion is described. Six specific examples are directed to the coating of cellulose triacetate films, thus in Example 1 the coatings are of polyvinyl pyrrolidone in methylene chloride, acetone and methanol with a small proportion of water followed by sodium polystyrene sulphonate in water with a little ethanol and an ethylene oxide/alkyl phenol condensate as surface-active agent.
Patent GB-1177690-A (GB)
Title: Improved Ion-Spacific Electrode System.
Inventor: SIMON WILHELM
IPC: G01N27/333
Filed: 1967-08-01
Abstract: 1,177,690. Electro-chemical analysis electrodes. E. MOLLER and W. MOLLER [trading as MOLLER GLASBLASEREI GEB.] Aug.1, 1967 [Aug.9, 1966], No.35301/67. Heading G1N. In an electrode system for measuring potassium ion concentration of an electrolyte, a membrane comprises a porous inert carrier on which is coated at least one of the group of substances comprising nonactin and its homologues, gramicidin and valinomycin. The inert carrier may be a glass frit, a filter paper, a polyethylene foil a nylon fabric or a gel former. Specific examples of membranes are given. The membrane may be interchangeably mounted at one end of a tubular glass envelope which contains an inner electrolyte solution of 0À1 molar LiCl. NaCl, KCl, RbCl and CsCl buffered to pH8 by acetic acid and triethanolamine and a silver/silver chloride electrode. This electrode comprises a copper lead (6) welded to a silver spiral (7) welded to a platinum wire (8) which has been silver plated and chloridized. A calomel reference electrode (D), suitable for use with the electrode of the invention, is described.
Patent GB-1070439-A (GB)
Title: Method of knitting a pile fabric
IPC: D04B9/14
Filed: 1965-08-17
Abstract: A high-pile fabric is produced on a circular machine by raising the needles to take tufts of fibres from a doffer-cylinder (18), Fig. 2 not shown, whilst the base loops (19) are held down by the sinker nibs.  The sinkers are then withdrawn and the needles lowered to an intermediate position in which the tufts are brought into a position to be engaged by the sinker nibs as the sinkers are reinserted but without the old loops (19) being cast off.  Thereafter the needles are raised and receive the base yarn (25), Fig. 6 not shown, and draw the loops through the previous loops and tufts of fibres.  To ensure that the tufts engage under the sinker nibs nozzles are positioned to direct jets of air on the tufts at the appropriate positions.  The fabric produced has the tufts suitably plated with the base fabric such that the fibres are not predominently evident on the back of the fabric. U.S.A. Specifications 1,114,414 and 3,052,111 are referred to.
Patent GB-1303455-A (GB)
IPC: G04C11/08
Filed: 1970-07-21
Abstract: 1303455 Electric timepieces COMPAGNIE DES MONTRES LONGINES FRANGILLION S A and BERNARD GOLAY S A 21 July 1970 [12 Aug 1969] 35342/70 Heading G3T In a frequency stabilizing arrangement within an electronic timepiece, a phase comparator in the form of a bistable circuit including transistors 13, 15 Fig.3 is switched to one state (both conducting) by pulses at the frequency of oscillation of a vibratory motor having coils 1 and is switched to its other state by a signal at a reference frequency f o  from a stable oscillator (not shown) (or from a stable oscillator via a frequency divider) applied via a transistor 16. The duration of the conduction period of Tr13, Tr15 is dependent upon the difference in frequency between the motor resonance frequency and f o , the greater the motor vibration rate relative to the reference frequency the longer the ON times of the bistable and viceversa. Output pulses from the bistable are integrated by C18 R19 and the direct voltage at a point II is a function of the deviation of the motor frequency from the reference f o . This voltage is applied to a varicap diode 20. When the voltage at point II increases the capacity of diode 20 increases and vice-versa. The diode 20 being connected to the motor coil 1 tends to shift the resonance frequency of the motor to the correct value f o . The motor coil 1 moves in a magnetic field and a sinusoidal voltage induced thereacross is applied via C7 across the base/emitter of a transistor 6. Tr 6 thus produces current pulses through R8 R9 thereby causing current pulses from Tr 10 which sustain the oscillations of the motor. When a pulse appears at the collector of Tr 6 a transistor 11 conducts and rapidly changes a capacitor 12. Simultaneously a pulse is applied to the bistable transistor 13 turning it ON and consequently Tr 15 conducts and remains conducting until Tr 16 is turned ON by f o . The repetition rate of the said pulse applied to Tr 13 corresponds to the motor frequency. Alternatively the motor may be driven directly by the reference frequency.
Patent GB-487840-A (GB)
Title: Improvements in and relating to plate heat exchangers for fluids
IPC: F28F3/08
Filed: 1936-12-24
Abstract: 487,840. Plate heat - exchangers. TRIGGS, W. W. (Ahlborn Akt.-Ges., E.) Dec. 24, 1936, No. 35379. [Class 64 (iii)] A plate heat-exchanger particularly for pasteurizing milk comprises a stack of alternately disposed, spirally-ribbed circular plates 1, 17, the ribs 5 of the plates 1 being substantially of metal and, e.g. cast with the plates, while those 18 of the sheet metal plates 17 are substantially, or have inserts, of rubber or other yielding material. The rubber ribs may be vulcanized to the plates or secured thereto by wires 20 embedded in the ribs and vulcanized at intervals to the plates. The plates are formed with the usual ports and are clamped together on a central bolt. The fluids between which heat is to be exchanged pass in series through alternate spaces between the plates. In a modification, the metal ribs 102, Fig. 7, are pressed in plates 101, while the rubber ribs 107 are vulcanized in the grooves formed by the pressing operation. In another arrangement, the exchanger is formed of rectangular sheet metal plates 206, 207, Fig. 16, spaced apart by reinforced rubber frames 201, Fig. 10, formed with ribs 209 and marginal frames 211.
Patent GB-384814-A (GB)
Title: Improvements relating to spring contact fingers for electric controllers and other like electrical apparatus
IPC: H01H1/44
Filed: 1931-12-22
Abstract: 384,814. Contact-members for switches. ELECTRO-MECHANICAL BRAKE CO., Ltd., ABBERLEY, J., and WOODMAN, P. T., Eagle Works, West Bromwich. Dec. 22, 1931, No. 35411. [Class 38 (v).] A spring contact-finger, for use with electric controllers &c., comprises a contact carrying arm a of channel section, pivoted at f in a channel-section bracket d, whose sides serve as guides therefor, and urged outwardly by a helical spring q. A screw n attached to the arm a passes through a slot o in the bracket d, and carries a nut p which serves as an adjustable stop for limiting pivotal movement. Accidental rotation of the nut is prevented by engagement between an extension of the nut and the slot o. The pivot f also serves to clamp the bracket d to the attachment member g, and a flexible conductor l connects the finger a with the member g.
Patent GB-1280778-A (GB)
Title: Reverse osmosis apparatus and method of making the same
IPC: B01D63/06
Filed: 1970-07-22
Abstract: 1280778 Reverse osmosis structure WESTINGHOUSE ELECTRIC CORP 22 July 1970 [5 Sept 1969] 35496/70 Heading B1X [Also in Divisions B5 and C3] A reverse osmosis structure comprises a porous body consisting of bonded resin particles 40 and having a plurality of spaced feed bores 42 extending through it, a semipermeable membrane 41 lining each of the feed bores, a liquid impermeable polymeric sealing composition applied to and filling the pores at the end faces of the porous body for closing the pores at the end faces, and means for sealing the membranes into the feed bores. In the embodiment of Figure 3, a layer of module sealant 45 is applied to the end faces of the porous body and extends into the ends of the bores, then membrane sealant 48 is applied to overlap the ends of the membranes and the module sealant. In the embodiment of Figure 6, annular plastics or metal grommets 60, optionally with grooves 61 to receive sealing rings 62, seal the ends of the membranes in bores 41. The assembled apparatus has end plates 70 with inlet 76 and outlet 77, and channels 71 to provide series flow through bores 41. Product water leaves through bores 75. In the Examples the porous body comprises resin coated sand and the membranes which are of cellulose are cured in situ. Other membrane materials are mentioned. There are references to purification of water and concentration of foodstuffs.
Patent GB-173961-A (GB)
Title: Improvements in and relating to glass or like caskets
IPC: A61G17/00
Filed: 1920-12-17
Abstract: 173,961. Tyree, H. Dec. 17, 1920. Coffins.-A burial casket comprises body and cover portions formed of glass or similar fictile material moulded on a metal wire framework supported at intervals bv metal knee-braces. The reinforcing material of the body part, for example, is of basket-form and is secured to a sheet-metal rim which terminates in a flanged edge 5, Fig. 10, covering the exterior of the moulded material, where it forms a rabbetjoint seating for the lower edge of the cover, which is similarly equipped. The joint is sealed with solder and covered by a metal moulding or " train " 25. The metal braces of the reinforcing frame are provided with studs such as 4 projecting from both sides thereof and serving to space the frame from the sides of the mould during manufacture. Some of the studs are hollow and threaded interiorly to form attachment means for interior upholstery fittings 14, and for an external " trim " or moulding 9 which is formed with recesses 13 in which the upper edges of the upstanding members 11, Fig. 12, of a casket carrier are adapted to engage. The sheet-metal parts of the braces of the reinforcing frame are perforated to allow free passage to the molten vitreous material, and are furnished with punch-up barbs to anchor the frame in the material. The cover portion has a metalframed window opening closed by a glass plate 28 also framed in metal, the joint between the two being sealed with fused metal.